Improvement in coffee-crushing machines



2- Sheets--S'heet T. SCHACHT.

Improvement in CoffeeCrushing Machines.

yV@40.130,078. Pazenredlulyso, 1am

' ZJSheets--Sheetl A. scHAcHT.

-Improvement in Coffee-Crushing Machines'.

N0. 130,078, PatentedlulySO, 1872.

UNITED STATEs PATENT OEEIoE.

ALBERT SGHACHT, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN COfFFEE-CRUSHING MACHINES.

Specification forming part of Letters Patent No. 130,078, dated July 30,1872'.

10 whom it may concern.-

Be it known that I, ALBERT ScHAcHT, of Chicago, in the county of Cookand State ot' Illinois, have invented a new and useful Improvement inCodec-Crushing Machines; and I do declare that the following is a trueand accurate description thereof, reference being had to theaccompanying drawing and to the letters ot' reference marked thereon andbeing a part of this specification, in which- Figure 1 is a longitudinalvertical section on the line a' v in Fig. 2, both iigures being on Sheetl of the drawing. Fig. 2 is a top plan. Fig. 3, Sheet 2, is anelevation; and Fig. 4, Sheet 2, is a vertical cross-section on the line:v in Fig. 3.

Y Like letters indicate like parts in each figure.

The nature of this invention relates to an improvement Vin theconstruction of machines employed for the purpose of preparing theroasted coffeeberry for use, so arranged as to crush the same and notgrind it to powder, and to separate the useless particles from theuseful. The invention consists in the construction and arrangement ofthe various parts, as more fully hereinafter described.

In the accompanying drawing, A represents a suitable frame, upon the topof which,'and between its sides, are placed the spil-allygroovedcrushing-rollers B, running in suitable boxes a, and driven by means ot'the pulley b and geared wheels o in such a manner that said rollers Bwill rotate toward each other', like the crushing-rollers of asugar-mill. So that said rollers can be adjusted to any desireddist-.ance from each other, in order to determine the coarseness ofthework, the rods d are secured at one 'end to th'e boxes a', which slideupon the top ofthe frame A, and`in which the roller B is journaled.lhese rods pass through stationary bearings e, which are secured to thetop of the frame, and Iwhich are connected together by the cross-bar f.The opposite ends of these rods pass through other bearings g, which arealso connected together by the cross-bar h, and between the two bearingseach of the rods el is inclosed within the spiral springs K, andthebearings g are prevented from being forced oit' the ends of the rods bythe nuts l. To the center of the length of the connecting-bar f issecured 011e end of the screw m, which is provided, each side of theconnecting-bar h, with thumb-nuts m. By the means of these devicescombined together the relative distances from each other of the rollersB are determined. C and C are bars, to which are attached the brushes D,which are designed and so placed as to constantly clean the rollers Bwhen the latter are in operation. The bar 0 is rigidly attached to theframe, while the bar C is secured at each end to the rods d, so that itadvances and recedes with the roller Which it is designed to clean. E isa hopperto receive the berry and discharge the same upon thecrushing-rollers. After these rollers have performed the operationrequired of them, the product is discharged onto the sieve or riddle F,which has a-reciprocating motion by means of the pitman n, crank-shaft0,pulley p, and belt q, from the pulley o'. This riddle or sieve isdivided into two pa-rts, the one provided with the finer mesh s allowingthe liner product of the crushed berry to pass through and fall upon theinclined bed t, Where it may be discharged through the gate u whendesired, while the coarser product of the berry is a1- lowed to dropthrough the `coarser mesh v upon a shoe, W; whence, as it is dischargedonto a similar inclined bed, y, it is exposed to the blast of the fan G,which is driven by means of the pulley z and belt z from the pulley T.In this way the coiee is freed from all impurities, which consist mainlyin a light scale contained in the center of each berry. H is a rod, tothe opposite end of which is secured the brush I, the head of which hasa reciprocating motion in slides (not shown) immediately underneath thesieves, and the brush is so arranged as to, when drawn backward andforward, clean the sieves, and prevent their clogging up. The coarserparts of the crushed berry, after having been discharged through thegate b', may be run through the crusher the second time, and the rollersregulated to crush it the required size. I

What I claim as my invention, and desire to secure by Letters Patent,is-

Ina coffee-crushing machine, the combination oi' the spira-lly-groovedrollers with the brushes, made adjustable as described, thereciprocating 'riddle with its divisions, the inclined board T, thechute W with the ian G, and brush H, combined and arranged as described,for the purpose set forth. v

Witnesses: l ALBERT SCHACHT.

WM. H. LoTz, EMILE WAGNER.

